Home / 13,669.69-18,860.86-7,701.36

Finding the Fourth Proportional to 13,669.69, 18,860.86 and 7,701.36

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Solution

The fourth proportional to 13,669.69, 18,860.86 and 7,701.36 is: 10,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.69 : 18,860.86 = 7,701.36 : x
  2. Step 2: Convert to fraction form
    13,669.69/18,860.86 = 7,701.36/x
  3. Step 3: Cross multiply
    13,669.69x = 18,860.86 × 7,701.36
  4. Step 4: Simplify right side
    13,669.69x = 145,254,272.77
  5. Step 5: Solve for x
    x = 145,254,272.77/13,669.69
  6. Step 6: Final answer
    x = 10,626.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.